How do you replace a broken wifi antenna ribbon cable unit?

Hi. I have an iPhone 4s. I recently replaced the front digitizer screen and discovered no wifi after the repair. I opened the unit back up and discovered I broke the tab on the ribbon cable that plugs onto the wifi snap plug (top of phone above battery under what I think is the grounding plate).

The replacement wifi units are fairly inexpensive, but I can't find any illustrations showing where and how the ribbon cable connects, as well as what parts are necessary to remove and replace as part of this repair.

Any insight, links, videos, or more, would be greatly appreciated. Thanks.

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